Weather Alerts for California

Recent Locations: Los Angeles, CA  
Current Alerts for Los Angeles, CA: Excessive Heat Watch

1. Excessive Heat Watch for: Indian Wells Valley; Southeastern Kern County Desert

2. Excessive Heat Warning for: Chuckwalla Valley; Imperial Valley

3. Excessive Heat Warning for: Chiriaco Summit; Chuckwalla Mountains; Imperial County Southeast; Imperial County Southwest; Imperial County West; Joshua Tree NP East; Joshua Tree NP West; Palo Verde Valley; Salton Sea

4. Excessive Heat Warning for: Cadiz Basin; Death Valley National Park; Eastern Mojave Desert, Including the Mojave National Preserve; Morongo Basin; San Bernardino County-Upper Colorado River Valley; Western Mojave Desert

5. Heat Advisory for: Del Norte Interior; Northeastern Mendocino Interior; Southern Trinity

6. Heat Advisory for: Northern Trinity

7. Excessive Heat Warning for: San Bernardino and Riverside County Valleys-The Inland Empire

8. Excessive Heat Warning for: San Diego County Inland Valleys

9. Excessive Heat Warning for: San Bernardino County Mountains

10. Excessive Heat Warning for: Riverside County Mountains; San Diego County Mountains

11. Excessive Heat Warning for: Santa Ana Mountains and Foothills

12. Excessive Heat Warning for: Apple and Lucerne Valleys

13. Excessive Heat Warning for: Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning

14. Excessive Heat Warning for: Orange County Inland

15. Excessive Heat Watch for: Cuyama Valley; San Luis Obispo County Central Coast; San Luis Obispo County Interior Valleys; San Luis Obispo County Mountains; Santa Barbara County Central Coast; Santa Ynez Valley

16. Excessive Heat Watch for: Antelope Valley; Los Angeles County Coast including Downtown Los Angeles; Los Angeles County Mountains excluding the Santa Monica Range; Los Angeles County San Fernando Valley; Los Angeles County San Gabriel Valley; Santa Barbara County Mountains; Santa Barbara County South Coast; Santa Clarita Valley; Santa Monica Mountains Recreational Area; Ventura County Coast; Ventura County Coastal Valleys; Ventura County Interior Valleys; Ventura County Mountains

17. Air Quality Alert for: Fresno; Madera; Mariposa; Merced; Stanislaus; Tulare; Tuolumne

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Weather Topic: What is Hail?

Home - Education - Precipitation - Hail

hail Next Topic: Precipitation

Hail is a form of precipitation which is recognized by large solid balls or clumps of ice. Hail is created by thunderstorm clouds with strong updrafts of wind. As the hailstones remain in the updraft, ice is deposited onto them until their weight becomes heavy enough for them to fall to the earth's surface.

Hail storms can cause significant damage to crops, aircrafts, and man-made structures, despite the fact that the duration is usually less than ten minutes.

Next Topic: Precipitation

Weather Topic: What is Rain?

Home - Education - Precipitation - Rain

rain Next Topic: Sleet

Precipitation in the form of water droplets is called rain. Rain generally has a tendency to fall with less intensity over a greater period of time, and when rainfall is more severe it is usually less sustained.

Rain is the most common form of precipitation and happens with greater frequency depending on the season and regional influences. Cities have been shown to have an observable effect on rainfall, due to an effect called the urban heat island. Compared to upwind, monthly rainfall between twenty and forty miles downwind of cities is 30% greater.

Next Topic: Sleet